Adding variable declaration line

Author: lostintangent

README.md

@@ -99,9 +99,11 @@ This change configures your app to always load the most recent version of your a
 
 *NOTE: The `bundleURL` method assumes your app's JS bundle is named `main.jsbundle`. If you have configured your app to use a different file name, simply call the `bundleURLForResource:` method (which assumes you're using the `.jsbundle` extension) or `bundleURLForResource:withExtension:` method instead, in order to overwrite that default behavior*
 
-Typically, you're only going to want to use CodePush to resolve your JS bundle within release builds, and therefore, we recommend using the `DEBUG` pre-processor macro to dynamically switch between using the packager server and CodePush, depending on whether you are debugging or not. This will make it much simpler to ensure you get the right behavior you want in production, while still being able to use the Chrome Dev Tools, live reload, etc. at debug-time. 
+Typically, you're only going to want to use CodePush to resolve your JS bundle location within release builds, and therefore, we recommend using the `DEBUG` pre-processor macro to dynamically switch between using the packager server and CodePush, depending on whether you are debugging or not. This will make it much simpler to ensure you get the right behavior you want in production, while still being able to use the Chrome Dev Tools, live reload, etc. at debug-time. 
 
 ```
+NSURL *jsCodeLocation;
+
 #ifdef DEBUG
     jsCodeLocation = [NSURL URLWithString:@"http://localhost:8081/index.ios.bundle?platform=ios&dev=true"];
 #else